Commit Graph

1574 Commits

Author SHA1 Message Date
Damien George c607b58efe tests: Move heap-realloc-while-locked test from C to Python.
This test for calling gc_realloc() while the GC is locked can be done in
pure Python, so better to do it that way since it can then be tested on
more ports.
2018-03-02 10:59:09 +11:00
Damien George c3f1b22338 tests/unix: Add coverage tests for various GC calls. 2018-03-01 22:49:15 +11:00
Damien George 955ee6477f py/formatfloat: Fix case where floats could render with negative digits.
Prior to this patch, some architectures (eg unix x86) could render floats
with "negative" digits, like ")".  For example, '%.23e' % 1e-80 would come
out as "1.0000000000000000/)/(,*0e-80".  This patch fixes the known cases.
2018-03-01 17:00:02 +11:00
Damien George 7b050fa76c py/formatfloat: Fix case where floats could render with a ":" character.
Prior to this patch, some architectures (eg unix x86) could render floats
with a ":" character in them, eg 1e+39 would come out as ":e+38" (":" is
just after "9" in ASCII so this is like 10e+38).  This patch fixes some of
these cases.
2018-03-01 16:02:59 +11:00
Damien George bc12eca461 py/formatfloat: Fix rounding of %f format with edge-case FP values.
Prior to this patch the %f formatting of some FP values could be off by up
to 1, eg '%.0f' % 123 would return "122" (unix x64).  Depending on the FP
precision (single vs double) certain numbers would format correctly, but
others wolud not.  This patch should fix all cases of rounding for %f.
2018-03-01 15:51:03 +11:00
Damien George 90e719a232 tests/extmod/vfs_fat_fileio1: Add test for calling file obj finaliser. 2018-02-28 15:27:51 +11:00
Damien George 439acddc60 tests/basics/gc1: Add test which triggers GC threshold. 2018-02-27 22:39:17 +11:00
Damien George d3cac18d49 tests/unix: Add coverage test for VM executing invalid bytecode. 2018-02-27 16:18:11 +11:00
Damien George 22ade2f5c4 py/vm: Fix case of handling raised StopIteration within yield from.
This patch concerns the handling of an NLR-raised StopIteration, raised
during a call to mp_resume() which is handling the yield from opcode.

Previously, commit 6738c1dded introduced code
to handle this case, along with a test.  It seems that it was lucky that
the test worked because the code did not correctly handle the stack pointer
(sp).

Furthermore, commit 79d996a57b improved the
way mp_resume() propagated certain exceptions: it changed raising an NLR
value to returning MP_VM_RETURN_EXCEPTION.  This change meant that the
test introduced in gen_yield_from_ducktype.py was no longer hitting the
code introduced in 6738c1dded.

The patch here does two things:

1. Fixes the handling of sp in the VM for the case that yield from is
   interrupted by a StopIteration raised via NLR.

2. Introduces a new test to check this handling of sp and re-covers the
   code in the VM.
2018-02-27 15:39:31 +11:00
Damien George 6dad088569 tests/float: Adjust float-parsing tests to pass with only a small error.
Float parsing (both single and double precision) may have a relative error
of order the floating point precision, so adjust tests to take this into
account by not printing all of the digits of the answer.
2018-02-26 15:54:03 +11:00
Damien George 4c2230add8 tests/extmod/uzlib_decompress: Add uzlib tests to improve coverage. 2018-02-26 13:36:55 +11:00
Damien George a604451566 tests/extmod/vfs_fat_fileio1: Add test for failing alloc with finaliser. 2018-02-26 13:36:13 +11:00
Damien George 62be14d77c tests/unix: Add coverage tests for mpz_set_from_float, mpz_mul_inpl.
These new tests cover cases that can't be reached from Python and get
coverage of py/mpz.c to 100%.

These "unreachable from Python" pieces of code could be removed but they
form an integral part of the mpz C API and may be useful for non-Python
usage of mpz.
2018-02-25 23:43:16 +11:00
Damien George 77a62d8b5a tests/stress: Add test to create a dict beyond "maximum" rehash size.
There is a finite list of ascending primes used for the size of a hash
table, and this test tests that the code can handle a dict larger than the
maximum value in that list of primes.  Adding this tests gets py/map.c to
100% coverage.
2018-02-24 23:14:39 +11:00
Damien George 90da791a08 tests/basics: Add test for calling a subclass of a native class.
Adding this test gets py/objtype.c to 100% coverage.
2018-02-24 23:13:42 +11:00
Damien George 160d670868 py/objdeque: Protect against negative maxlen in deque constructor.
Otherwise passing -1 as maxlen will lead to a zero allocation and
subsequent unbound buffer overflow in deque.append() because i_put is
allowed to grow without bound.
2018-02-21 23:34:17 +11:00
Damien George 8f9b113be2 tests/basics: Add tests to improve coverage of py/objdeque.c. 2018-02-21 23:19:06 +11:00
Paul Sokolovsky 4668ec801e tests/basics/deque*: Tests for ucollections.deque. 2018-02-21 22:58:14 +11:00
Damien George 4e469085c1 py/objstr: Protect against creating bytes(n) with n negative.
Prior to this patch uPy (on a 32-bit arch) would have severe issues when
calling bytes(-1): such a call would call vstr_init_len(vstr, -1) which
would then +1 on the len and call vstr_init(vstr, 0), which would then
round this up and allocate a small amount of memory for the vstr.  The
bytes constructor would then attempt to zero out all this memory, thinking
it had allocated 2^32-1 bytes.
2018-02-19 16:25:30 +11:00
Damien George 165aab12a3 py/repl: Generalise REPL autocomplete to use qstr probing.
This patch changes the way REPL autocomplete finds matches.  It now probes
the target object for all qstrs via mp_load_method_maybe to look for a
match with the given input string.  Similar to how the builtin dir()
function works, this new algorithm now find all methods and instances of
user-defined classes including attributes of their parent classes.  This
helps a lot at the REPL prompt for user-discovery and to autocomplete names
even for classes that are derived.

The downside is that this new algorithm is slower than the previous one,
and in particular will be slower the more qstrs there are in the system.
But because REPL autocomplete is primarily used in an interactive way it is
not that important to make it fast, as long as it is "fast enough" compared
to human reaction.

On a slow microcontroller (CPU running at 16MHz) the autocomplete time for
a list of 35 names in the outer namespace (pressing tab at a bare prompt)
takes about 160ms with this algorithm, compared to about 40ms for the
previous implementation (this time includes the actual printing of the
names as well).  This time of 160ms is very reasonable especially given the
new functionality of listing all the names.

This patch also decreases code size by:

   bare-arm:    +0
minimal x86:  -128
   unix x64:  -128
unix nanbox:  -224
      stm32:   -88
     cc3200:   -80
    esp8266:   -92
      esp32:   -84
2018-02-19 16:12:44 +11:00
Damien George 98647e83c7 py/modbuiltins: Simplify and generalise dir() by probing qstrs.
This patch improves the builtin dir() function by probing the target object
with all possible qstrs via mp_load_method_maybe.  This is very simple (in
terms of implementation), doesn't require recursion, and allows to list all
methods of user-defined classes (without duplicates) even if they have
multiple inheritance with a common parent.  The downside is that it can be
slow because it has to iterate through all the qstrs in the system, but
the "dir()" function is anyway mostly used for testing frameworks and user
introspection of types, so speed is not considered a priority.

In addition to providing a more complete implementation of dir(), this
patch is simpler than the previous implementation and saves some code
space:

   bare-arm:   -80
minimal x86:   -80
   unix x64:   -56
unix nanbox:   -48
      stm32:   -80
     cc3200:   -80
    esp8266:  -104
      esp32:   -64
2018-02-19 16:12:44 +11:00
Mike Wadsten a3e01d3642 py/objdict: Disallow possible modifications to fixed dicts. 2018-02-18 21:51:04 -06:00
Damien George d9bca1f7bd extmod/modujson: Implement ujson.dump() function. 2018-02-15 11:35:42 +11:00
Damien George d77da83d55 py/objrange: Implement (in)equality comparison between range objects.
This feature is not often used so is guarded by the config option
MICROPY_PY_BUILTINS_RANGE_BINOP which is disabled by default.  With this
option disabled MicroPython will always return false when comparing two
range objects for equality (unless they are exactly the same object
instance).  This does not match CPython so if (in)equality between range
objects is needed then this option should be enabled.

Enabling this option costs between 100 and 200 bytes of code space
depending on the machine architecture.
2018-02-14 23:17:06 +11:00
Damien George 49e0dd54e6 tests/run-tests: Capture any output from a crashed uPy execution.
Instead of putting just 'CRASH' in the .py.out file, this patch makes it so
any output from uPy that led to the crash is stored in the .py.out file, as
well as the 'CRASH' message at the end.
2018-02-14 17:24:59 +11:00
Damien George 04c55f5828 tests: Rewrite some tests so they can run without needing eval/exec.
For builds without the compiler enabled (and hence without eval/exec) it is
useful to still be able to run as many tests as possible.
2018-02-14 16:50:20 +11:00
Damien George 6031957473 tests: Automatically skip tests that require eval, exec or frozenset. 2018-02-14 16:46:44 +11:00
Damien George bbb08431f3 py/objfloat: Fix case of raising 0 to -infinity.
It was raising an exception but it should return infinity.
2018-02-08 14:35:43 +11:00
Damien George b75cb8392b py/parsenum: Fix parsing of floats that are close to subnormal.
Prior to this patch, a float literal that was close to subnormal would
have a loss of precision when parsed.  The worst case was something like
float('10000000000000000000e-326') which returned 0.0.
2018-02-08 14:02:50 +11:00
Damien George 923ebe767d tests/unix: Add coverage test for calling mp_obj_new_bytearray. 2018-02-08 11:14:30 +11:00
Damien George 1f53ff61ff tests/basics: Rename remaining tests that are for built-in functions.
For consistency with all of the other tests that are named builtin_XXX.py.
2018-02-07 15:55:52 +11:00
Damien George b45c8c17f0 py/objtype: Check and prevent delete/store on a fixed locals map.
Note that the check for elem!=NULL is removed for the
MP_MAP_LOOKUP_ADD_IF_NOT_FOUND case because mp_map_lookup will always
return non-NULL for such a case.
2018-02-07 15:44:29 +11:00
Ayke van Laethem 7642785881 extmod/vfs_fat_file: Implement SEEK_CUR for non-zero offset.
CPython doesn't allow SEEK_CUR with non-zero offset for files in text mode,
and uPy inherited this behaviour for both text and binary files.  It makes
sense to provide full support for SEEK_CUR of binary-mode files in uPy, and
to do this in a minimal way means also allowing to use SEEK_CUR with
non-zero offsets on text-mode files.  That seems to be a fair compromise.
2018-01-31 17:33:07 +11:00
Damien George a1d85d6199 tests/basics/memoryerror: Add test for out-of-memory using realloc. 2017-12-20 16:58:27 +11:00
Damien George d35c6ffc84 tests/extmod: Add some uctypes tests to improve coverage of that module. 2017-12-19 16:48:41 +11:00
Damien George 35a759dc1d tests: Add some more tests to improve coverage of py/parse.c. 2017-12-19 16:13:00 +11:00
Damien George 2bfa531798 tests/basics/builtin_pow3: Add tests for edge cases of pow3. 2017-12-19 15:44:10 +11:00
Damien George 8e6113a188 tests/basics/generator_pend_throw: Add test for just-started generator. 2017-12-19 15:02:34 +11:00
Damien George e800e4463d tests/unix: Add test for printf with %lx format. 2017-12-19 15:01:17 +11:00
Damien George 7cae17fac7 tests/float/builtin_float_hash: Add test to improve objfloat.c coverage. 2017-12-19 14:50:33 +11:00
Damien George 251b00457c tests/extmod/uhashlib_sha256: Add test for hashing 56 bytes of data. 2017-12-19 14:46:31 +11:00
Damien George 7208cad97a tests/basics: Add more set tests to improve coverage of py/objset.c. 2017-12-19 13:59:54 +11:00
Paul Sokolovsky 6364401666 py/objgenerator: Allow to pend an exception for next execution.
This implements .pend_throw(exc) method, which sets up an exception to be
triggered on the next call to generator's .__next__() or .send() method.
This is unlike .throw(), which immediately starts to execute the generator
to process the exception. This effectively adds Future-like capabilities
to generator protocol (exception will be raised in the future).

The need for such a method arised to implement uasyncio wait_for() function
efficiently (its behavior is clearly "Future" like, and normally would
require to introduce an expensive Future wrapper around all native
couroutines, like upstream asyncio does).

py/objgenerator: pend_throw: Return previous pended value.

This effectively allows to store an additional value (not necessary an
exception) in a coroutine while it's not being executed. uasyncio has
exactly this usecase: to mark a coro waiting in I/O queue (and thus
not executed in the normal scheduling queue), for the purpose of
implementing wait_for() function (cancellation of such waiting coro
by a timeout).
2017-12-15 20:20:36 +02:00
Paul Sokolovsky 103eeffcd9 tests/run-tests: Skip running feature checks for --list-tests/--write-exp.
The whole idea of --list-tests is that we prepare a list of tests to run
later, and currently don't have a connection to target board. Similarly
for --write-exp - only "python3" binary would be required for this operation,
not "micropython".
2017-12-15 12:07:09 +02:00
Paul Sokolovsky 3233537a15 tests/run-tests: Don't test for --target=unix with "pyb is None".
If we test for unix target, do that explicitly. pyb var will be None
for commands like --list-tests too.
2017-12-14 13:36:06 +02:00
Paul Sokolovsky 64bb32d87f tests/run-tests: Add composable --include and --exclude options.
The idea that --list-tests would be enough to produce list of tests for
tinytest-codegen didn't work, because normal run-tests processing heavily
relies on dynamic target capabilities discovery, and test filtering happens
as the result of that.

So, approach the issue from different end - allow to specify arbitrary
filtering criteria as run-tests arguments. This way, specific filters
will be still hardcoded, but at least on a particular target's side,
instead of constant patching tinytest-codegen and/or run-tests.
2017-12-14 12:26:10 +02:00
Paul Sokolovsky aaeb70b7b7 tests/run-tests: Fix handling of --list-tests wrt skipped tests.
"skip <test>" message could leak before.
2017-12-14 12:13:36 +02:00
Paul Sokolovsky 8d11fc0bc4 tests/run-tests: minimal: Exclude recently added subclass_native_init.py.
It relies on MICROPY_CPYTHON_COMPAT being defined.
2017-12-14 10:35:05 +02:00
Damien George 46b35356e1 extmod/modframebuf: Add 8-bit greyscale format (GS8). 2017-12-14 17:36:13 +11:00
Petr Viktorin 34247465c3 extmod/modframebuf: Add 2-bit color format (GS2_HMSB).
This format is used in 2-color LED matrices and in e-ink displays like
SSD1606.
2017-12-14 17:13:02 +11:00
Damien George 36f79523ab tests: Add tests to improve coverage of py/objtype.c. 2017-12-14 12:25:30 +11:00
Paul Sokolovsky 334934ee97 tests/run-tests: Add --list-tests switch.
Lists tests to be executed, subject to all other filters requested. This
options would be useful e.g. for scripts like tools/tinytest-codegen.py,
which currently contains hardcoded filters for particular a particular
target and can't work for multiple targets.
2017-12-13 18:35:37 +02:00
Paul Sokolovsky da34b6ef45 tests: Fix few test for proper "skipped" detection with qemu-arm's tinytest.
"Builtin" tinytest-based testsuite as employed by qemu-arm (and now
generalized by me to be reusable for other targets) performs simplified
detection of skipped tests, it treats as such tests which raised SystemExit
(instead of checking got "SKIP" output). Consequently, each "SKIP" must
be accompanied by SystemExit (and conversely, SystemExit should not be
used if test is not skipped, which so far seems to be true).
2017-12-12 23:45:48 +02:00
Damien George e4e3f0d727 tests/cpydiff: Update subclassing Exception case and give work-around. 2017-12-12 17:13:39 +11:00
Damien George 3c28df1658 tests/extmod: Add test which subclasses framebuf.FrameBuffer. 2017-12-12 16:48:09 +11:00
Damien George fd0b0db873 tests/basics: Add test for overriding a native base-class's init method. 2017-12-12 16:47:38 +11:00
Paul Sokolovsky 016f830536 tests/heapalloc, heapalloc_super: Skip in strict stackless mode.
These tests involves testing allocation-free function calling, and in strict
stackless mode, it's not possible to make a function call with heap locked
(because function activation record aka frame is allocated on the heap).
2017-12-11 12:04:59 +02:00
Paul Sokolovsky e02cb9ec31 tests/heapalloc_*: Refactor some tests to work in strict stackless mode.
In strict stackless mode, it's not possible to make a function call with
heap locked (because function activation record aka frame is allocated on
heap). So, if the only purpose of function is to introduce local variable
scope, move heap lock/unlock calls inside the function.
2017-12-11 12:00:41 +02:00
Paul Sokolovsky e104e24e53 tests/run-tests: Wrap long lists to facilitate adding more items. 2017-12-05 01:56:05 +02:00
Paul Sokolovsky 3c483842db tests/cpydiff: Fix markup where "`" (xref) was used instead of "``" (code). 2017-12-03 15:32:09 +02:00
Paul Sokolovsky a289b24e25 tests/run-tests: "minimal": Skip recently added float/float_parse.py.
Fails for Zephyr qemu_x86 with:

-9e-36
+9.000001e-36
2017-11-28 14:11:19 +02:00
Damien George 63f47104fe tests/cpydiff: Add difference-test for second arg of builtin next(). 2017-11-28 10:50:53 +11:00
Damien George c3bc8d7b2b tests/basics/builtin_locals: Add test for using locals() in class body. 2017-11-27 14:14:57 +11:00
Damien George 84895f1a21 py/parsenum: Improve parsing of floating point numbers.
This patch improves parsing of floating point numbers by converting all the
digits (integer and fractional) together into a number 1 or greater, and
then applying the correct power of 10 at the very end.  In particular the
multiple "multiply by 0.1" operations to build a fraction are now combined
together and applied at the same time as the exponent, at the very end.

This helps to retain precision during parsing of floats, and also includes
a check that the number doesn't overflow during the parsing.  One benefit
is that a float will have the same value no matter where the decimal point
is located, eg 1.23 == 123e-2.
2017-11-27 12:51:52 +11:00
Damien George c7a0e1472d tests/basics/builtin_range: Add test for corner case of range slicing. 2017-11-24 15:30:12 +11:00
Damien George 505671b698 tests/basics: Add test for containment of a subclass of a native type. 2017-11-24 14:48:41 +11:00
Damien George 5e34a113ea py/runtime: Add MP_BINARY_OP_CONTAINS as reverse of MP_BINARY_OP_IN.
Before this patch MP_BINARY_OP_IN had two meanings: coming from bytecode it
meant that the args needed to be swapped, but coming from within the
runtime meant that the args were already in the correct order.  This lead
to some confusion in the code and comments stating how args were reversed.
It also lead to 2 bugs: 1) containment for a subclass of a native type
didn't work; 2) the expression "{True} in True" would illegally succeed and
return True.  In both of these cases it was because the args to
MP_BINARY_OP_IN ended up being reversed twice.

To fix these things this patch introduces MP_BINARY_OP_CONTAINS which
corresponds exactly to the __contains__ special method, and this is the
operator that built-in types should implement.  MP_BINARY_OP_IN is now only
emitted by the compiler and is converted to MP_BINARY_OP_CONTAINS by
swapping the arguments.
2017-11-24 14:48:23 +11:00
Damien George df078e8213 tests/net_hosted: Add test for socket connect() and poll() behaviour. 2017-11-23 10:45:12 +11:00
Damien George a07fc5b640 py/objfloat: Allow float() to parse anything with the buffer protocol.
This generalises and simplifies the code and follows CPython behaviour.
2017-11-21 15:01:38 +11:00
stijn 79ed58f87b py/objnamedtuple: Add _asdict function if OrderedDict is supported 2017-11-12 14:16:54 +02:00
Paul Sokolovsky 9b9dbc5815 py/objtype: Define all special methods if requested.
If MICROPY_PY_ALL_SPECIAL_METHODS is defined, actually define all special
methods (still subject to gating by e.g. MICROPY_PY_REVERSE_SPECIAL_METHODS).

This adds quite a number of qstr's, so should be used sparingly.
2017-10-27 20:06:35 +03:00
Damien George f36975b679 tests/net_inet: Update tls test to work with CPython and incl new site.
CPython only supports the server_hostname keyword arg via the SSLContext
object, so use that instead of the top-level ssl.wrap_socket.  This allows
the test to run on CPython the same as uPy.

Also add the "Host:" header to correctly make a GET request (for URLs that
are hosted on other servers).  This is not strictly needed to test the SSL
connection but helps to debug things when printing the response.
2017-10-26 12:29:24 +11:00
Damien George a3afa8cfc4 py/emitnative: Implement floor-division and modulo for viper emitter. 2017-10-11 18:54:34 +11:00
Damien George 08a196697c py/formatfloat: Don't print the negative sign of a NaN value.
NaN may have the sign bit set but it has no meaning, so don't print it out.
2017-10-10 16:01:13 +11:00
Damien George 25e140652b py/modmath: Add full checks for math domain errors.
This patch changes how most of the plain math functions are implemented:
there are now two generic math wrapper functions that take a pointer to a
math function (like sin, cos) and perform the necessary conversion to and
from MicroPython types.  This helps to reduce code size.  The generic
functions can also check for math domain errors in a generic way, by
testing if the result is NaN or infinity combined with finite inputs.

The result is that, with this patch, all math functions now have full
domain error checking (even gamma and lgamma) and code size has decreased
for most ports.  Code size changes in bytes for those with the math module
are:

   unix x64:  -432
unix nanbox:  -792
      stm32:   -88
    esp8266:   +12

Tests are also added to check domain errors are handled correctly.
2017-10-10 15:57:45 +11:00
Paul Sokolovsky 71c1a05d88 tests/run-tests: Close device under test using "finally".
We want to close communication object even if there were exceptions
somewhere in the code. This is important for --device exec:/execpty:
which may otherwise leave processing running in the background.
2017-10-07 15:49:58 +03:00
Damien George 98dd126e98 tests/extmod: Add test for '-' in character class in regex. 2017-10-05 11:33:49 +11:00
Damien George 0864a6957f py: Clean up unary and binary enum list to keep groups together.
2 non-bytecode binary ops (NOT_IN and IN_NOT) are moved out of the
bytecode group, so this change will change the bytecode format.
2017-10-05 10:49:44 +11:00
Damien George dfa563c71f py/objstr: Make empty bytes object have a null-terminating byte.
Because a lot of string processing functions assume there is a null
terminating byte, so they can work in an efficient way.

Fixes issue #3334.
2017-10-04 17:59:22 +11:00
Damien George 1394258f37 py/objset: Include the failed key in a KeyError raised from set.remove. 2017-10-03 18:03:06 +11:00
Damien George 2ac1364688 py/objset: Check that RHS of a binary op is a set/frozenset.
CPython docs explicitly state that the RHS of a set/frozenset binary op
must be a set to prevent user errors.  It also preserves commutativity of
the ops, eg: "abc" & set() is a TypeError, and so should be set() & "abc".

This change actually decreases unix (x64) code by 160 bytes; it increases
stm32 by 4 bytes and esp8266 by 28 bytes (but previous patch already
introduced a much large saving).
2017-10-03 17:56:27 +11:00
Paul Sokolovsky 8e0b9f495b tests/extmod: Add test for ure regexes leading to infinite recursion.
These now should be caught properly and lead to RuntimeError instead of
crash.
2017-10-03 00:24:32 +03:00
Damien George bdc6e86e07 py/objfloat: Support raising a negative number to a fractional power.
This returns a complex number, following CPython behaviour.  For ports that
don't have complex numbers enabled this will raise a ValueError which gives
a fail-safe for scripts that were written assuming complex numbers exist.
2017-09-26 12:57:51 +10:00
David Lechner 62849b7010 py: Add config option to print warnings/errors to stderr.
This adds a new configuration option to print runtime warnings and errors to
stderr. On Unix, CPython prints warnings and unhandled exceptions to stderr,
so the unix port here is configured to use this option.

The unix port already printed unhandled exceptions on the main thread to
stderr. This patch fixes unhandled exceptions on other threads and warnings
(issue #2838) not printing on stderr.

Additionally, a couple tests needed to be fixed to handle this new behavior.
This is done by also capturing stderr when running tests.
2017-09-26 11:59:11 +10:00
Paul Sokolovsky 9d836fedbd py: Clarify which mp_unary_op_t's may appear in the bytecode.
Not all can, so we don't need to reserve bytecodes for them, and can
use free slots for something else later.
2017-09-25 16:35:19 -07:00
Damien George ede8a0235b py/vstr: Raise a RuntimeError if fixed vstr buffer overflows.
Current users of fixed vstr buffers (building file paths) assume that there
is no overflow and do not check for overflow after building the vstr.  This
has the potential to lead to NULL pointer dereferences
(when vstr_null_terminated_str returns NULL because it can't allocate RAM
for the terminating byte) and stat'ing and loading invalid path names (due
to the path being truncated).  The safest and simplest thing to do in these
cases is just raise an exception if a write goes beyond the end of a fixed
vstr buffer, which is what this patch does.  It also simplifies the vstr
code.
2017-09-21 20:29:41 +10:00
Damien George 96fd80db13 py/objexcept: Prevent infinite recursion when allocating exceptions.
The aim of this patch is to rewrite the functions that create exception
instances (mp_obj_exception_make_new and mp_obj_new_exception_msg_varg) so
that they do not call any functions that may raise an exception.  Otherwise
it's possible to create infinite recursion with an exception being raised
while trying to create an exception object.

The two main things that are done to accomplish this are:
1. Change mp_obj_new_exception_msg_varg to just format the string, then
   call mp_obj_exception_make_new to actually create the exception object.
2. In mp_obj_exception_make_new and mp_obj_new_exception_msg_varg try to
   allocate all memory first using functions that don't raise exceptions
   If any of the memory allocations fail (return NULL) then degrade
   gracefully by trying other options for memory allocation, eg using the
   emergency exception buffer.
3. Use a custom printer backend to conservatively format strings: if it
   can't allocate memory then it just truncates the string.

As part of this rewrite, raising an exception without a message, like
KeyError(123), will now use the emergency buffer to store the arg and
traceback data if there is no heap memory available.

Memory use with this patch is unchanged.  Code size is increased by:

   bare-arm:  +136
minimal x86:  +124
   unix x64:   +72
unix nanbox:   +96
      stm32:   +88
    esp8266:   +92
     cc3200:   +80
2017-09-21 15:24:57 +10:00
Paul Sokolovsky fc9a6dd09e py/objstr: strip: Don't strip "\0" by default.
An issue was due to incorrectly taking size of default strip characters
set.
2017-09-19 21:21:12 +03:00
Paul Sokolovsky 9dce823cfd py/modbuiltins: Implement abs() by dispatching to MP_UNARY_OP_ABS.
This allows user classes to implement __abs__ special method, and saves
code size (104 bytes for x86_64), even though during refactor, an issue
was fixed and few optimizations were made:

* abs() of minimum (negative) small int value is calculated properly.
* objint_longlong and objint_mpz avoid allocating new object is the
  argument is already non-negative.
2017-09-18 00:06:43 +03:00
Paul Sokolovsky 75163325ae tests/cpydiff: Add cases for locals() discrepancies.
MicroPython doesn't maintain local symbolic environment, so any feature
depending on it won't work as expected.
2017-09-16 13:05:15 +03:00
Paul Sokolovsky f54b3527f2 tests/run-tests: Fix copy-paste mistake in var name. 2017-09-10 22:38:18 +03:00
Paul Sokolovsky d1f909005a tests/run-tests: Skip class_inplace_op for minimal profile.
Don't assume that MICROPY_PY_ALL_SPECIAL_METHODS is defined, as required
for inplace special methods.

Fixes Zephyr tests.
2017-09-10 22:32:08 +03:00
Paul Sokolovsky d6f9d64d97 tests/class_reverse_op: Test for reverse arith ops special methods.
This test should be run only if support for reverse ops is enabled, so
the corresponding feature_check is added to run-tests.
2017-09-10 17:05:57 +03:00
Damien George 0708dd495f tests/run-bench-tests: Update locations of executables, now in ports/. 2017-09-08 12:11:15 +10:00
Paul Sokolovsky b8ee7ab5b9 py/runtime0.h: Put inplace arith ops in front of normal operations.
This is to allow to place reverse ops immediately after normal ops, so
they can be tested as one range (which is optimization for reverse ops
introduction in the next patch).
2017-09-08 00:10:10 +03:00
Paul Sokolovsky 50b9329eba py/runtime0.h: Move MP_BINARY_OP_DIVMOD to the end of mp_binary_op_t.
It starts a dichotomy of mp_binary_op_t values which can't appear in the
bytecode. Another reason to move it is to VALUES of OP_* and OP_INPLACE_*
nicely adjacent. This also will be needed for OP_REVERSE_*, to be soon
introduced.
2017-09-07 11:26:42 +03:00
Paul Sokolovsky d4d1c45a55 py/runtime0.h: Move relational ops to the beginning of mp_binary_op_t.
This is to allow to encode arithmetic operations more efficiently, in
preparation to introduction of __rOP__ method support.
2017-09-07 10:55:43 +03:00
Paul Sokolovsky 5c603bd0fd py/objlist: Properly implement comparison with incompatible types.
Should raise TypeError, unless it's (in)equality comparison.
2017-09-07 00:10:10 +03:00
tll 68c28174d0 py/objstr: Add check for valid UTF-8 when making a str from bytes.
This patch adds a function utf8_check() to check for a valid UTF-8 encoded
string, and calls it when constructing a str from raw bytes.  The feature
is selectable at compile time via MICROPY_PY_BUILTINS_STR_UNICODE_CHECK and
is enabled if unicode is enabled.  It costs about 110 bytes on Thumb-2, 150
bytes on Xtensa and 170 bytes on x86-64.
2017-09-06 16:43:09 +10:00
Damien George 4a93801c12 all: Update Makefiles and others to build with new ports/ dir layout.
Also renames "stmhal" to "stm32" in documentation and everywhere else.
2017-09-06 14:09:13 +10:00
Paul Sokolovsky 1aaba5cabe py/objtuple: Properly implement comparison with incompatible types.
Should raise TypeError, unless it's (in)equality comparison.
2017-09-06 00:23:41 +03:00
Paul Sokolovsky 376618cd8a tests/class_inplace_op: Test for inplace op fallback to normal one. 2017-09-04 16:44:38 +03:00
Damien George d4b75f6b68 py/obj: Fix comparison of float/complex NaN with itself.
IEEE floating point is specified such that a comparison of NaN with itself
returns false, and Python respects these semantics.  This patch makes uPy
also have these semantics.  The fix has a minor impact on the speed of the
object-equality fast-path, but that seems to be unavoidable and it's much
more important to have correct behaviour (especially in this case where
the wrong answer for nan==nan is silently returned).
2017-09-04 14:16:27 +10:00
Paul Sokolovsky 9950865c39 py/objfloat: Fix binary ops with incompatible objects.
These are now returned as "operation not supported" instead of raising
TypeError. In particular, this fixes equality for float vs incompatible
types, which now properly results in False instead of exception. This
also paves the road to support reverse operation (e.g. __radd__) with
float objects.

This is achieved by introducing mp_obj_get_float_maybe(), similar to
existing mp_obj_get_int_maybe().
2017-09-02 23:05:24 +03:00
Damien George 2daacc5cee py/modstruct: Check and prevent buffer-write overflow in struct packing.
Prior to this patch, the size of the buffer given to pack_into() was checked
for being too small by using the count of the arguments, not their actual
size.  For example, a format spec of '4I' would only check that there was 4
bytes available, not 16; and 'I' would check for 1 byte, not 4.

The pack() function is ok because its buffer is created to be exactly the
correct size.

The fix in this patch calculates the total size of the format spec at the
start of pack_into() and verifies that the buffer is large enough.  This
adds some computational overhead, to iterate through the whole format spec.
The alternative is to check during the packing, but that requires extra
code to handle alignment, and the check is anyway not needed for pack().
So to maintain minimal code size the check is done using struct_calcsize.
2017-09-01 11:11:09 +10:00
Damien George 79d5acbd01 py/modstruct: Check and prevent buffer-read overflow in struct unpacking
Prior to this patch, the size of the buffer given to unpack/unpack_from was
checked for being too small by using the count of the arguments, not their
actual size.  For example, a format spec of '4I' would only check that
there was 4 bytes available, not 16; and 'I' would check for 1 byte, not 4.

This bug is fixed in this patch by calculating the total size of the format
spec at the start of the unpacking function.  This function anyway needs to
calculate the number of items at the start, so calculating the total size
can be done at the same time.
2017-09-01 10:53:29 +10:00
Damien George 793d826d9d py/modstruct: In struct.pack, stop converting if there are no args left.
This patch makes a repeat counter behave the same as repeating the
typecode, when there are not enough args.  For example:
struct.pack('2I', 1) now behave the same as struct.pack('II', 1).
2017-09-01 10:10:51 +10:00
Paul Sokolovsky b349479a49 tests/class_new: Add another testcase for __new__/__init__ interaction.
Similar to the existing testcase, but test that returning both value of
native type and instance of another user class from __new__ lead to
__init__ not being called, for better coverage.
2017-09-01 00:43:52 +03:00
Paul Sokolovsky 35be9e805f tests/class_new: Add checks for __init__ being called and other improvements. 2017-08-30 21:33:42 +03:00
Paul Sokolovsky b565c36963 tests/object_new: Better messages, check user __new__() method.
Make messages more verbose and easier to follow and check that user class'
__new__() is not called by object.__new__(user_class).
2017-08-30 21:29:23 +03:00
Paul Sokolovsky 784909ce16 py/objtype: Handle NotImplemented return from binary special methods.
NotImplemented means "try other fallbacks (like calling __rop__
instead of __op__) and if nothing works, raise TypeError". As
MicroPython doesn't implement any fallbacks, signal to raise
TypeError right away.
2017-08-30 01:39:24 +03:00
Paul Sokolovsky 37379a2974 py/objstr: startswith, endswith: Check arg to be a string.
Otherwise, it will silently get incorrect result on other values types,
including CPython tuple form like "foo.png".endswith(("png", "jpg"))
(which MicroPython doesn't support for unbloatedness).
2017-08-29 00:06:21 +03:00
Paul Sokolovsky e3383e9352 py/stream: seek: Consistently handle negative offset for SEEK_SET.
Per POSIX, this is EINVAL, so raises OSError(EINVAL).
2017-08-20 22:02:41 +03:00
Alex Robbins c89254fd0f extmod/modubinascii: Rewrite mod_binascii_a2b_base64.
This implementation ignores invalid characters in the input. This allows
it to decode the output of b2a_base64, and also mimics the behavior of
CPython.
2017-08-17 09:25:51 +03:00
Damien George 025e5f2b33 py/binary: Change internal bytearray typecode from 0 to 1.
The value of 0 can't be used because otherwise mp_binary_get_size will let
a null byte through as the type code (intepreted as byterray).  This can
lead to invalid type-specifier strings being let through without an error
in the struct module, and even buffer overruns.
2017-08-17 16:19:35 +10:00
Eric Poulsen d5191edf7f extmod/modussl_mbedtls.c: Add ussl.getpeercert() method.
Behaviour is as per CPython but only the binary form is implemented here.
A test is included.
2017-08-16 15:01:00 +10:00
Bas van Sisseren a14ce77b28 py/binary.c: Fix bug when packing big-endian 'Q' values.
Without bugfix:

    struct.pack('>Q', 16)
    b'\x00\x00\x00\x10\x00\x00\x00\x00'

With bugfix:

    struct.pack('>Q', 16)
    b'\x00\x00\x00\x00\x00\x00\x00\x10'
2017-08-15 11:33:43 +10:00
Paul Sokolovsky bfc2092dc5 py/modsys: Initial implementation of sys.getsizeof().
Implemented as a new MP_UNARY_OP. This patch adds support lists, dicts and
instances.
2017-08-11 09:43:07 +03:00
Damien George 3d25d9c7d9 py/objstr: Raise an exception for wrong type on RHS of str binary op.
The main case to catch is invalid types for the containment operator, of
the form str.__contains__(non-str).
2017-08-09 21:25:48 +10:00
Damien George eb2784e8a2 py/objtuple: Allow to use inplace-multiplication operator on tuples. 2017-08-09 21:20:42 +10:00
Alexander Steffen 55f33240f3 all: Use the name MicroPython consistently in comments
There were several different spellings of MicroPython present in comments,
when there should be only one.
2017-07-31 18:35:40 +10:00
Damien George 04552ff71b py: Implement raising a big-int to a negative power.
Before this patch raising a big-int to a negative power would just return
0.  Now it returns a floating-point number with the correct value.
2017-07-25 11:49:22 +10:00
Tom Collins 6cfe737597 tests/basics/builtin_exec: Test various globals/locals args to exec(). 2017-07-21 15:17:33 +10:00
Damien George 6c1b7e008d tests: Rename exec1.py to builtin_exec.py. 2017-07-21 15:11:24 +10:00
Paul Sokolovsky 4368ae3142 extmod/modussl_axtls: Allow to close ssl stream multiple times.
Make sure that 2nd close has no effect and operations on closed streams
are handled properly.
2017-07-20 00:20:53 +03:00
Damien George 761e4c7ff6 all: Remove trailing spaces, per coding conventions. 2017-07-19 13:12:10 +10:00
Paul Sokolovsky ad3abcd324 tests/cpydiff: Add case for str.ljust/rjust. 2017-07-09 15:04:26 +03:00
Paul Sokolovsky 0c5369a1f0 tests/cpydiff/: Improve wording, add more workarounds. 2017-07-09 14:33:55 +03:00
Paul Sokolovsky 5f65ad8c96 tests/cpydiff/core_class_supermultiple: Same cause as core_class_mro. 2017-07-09 13:47:23 +03:00
Paul Sokolovsky c5efb8159f tests/cpydiff/core_arguments: Move under Functions subsection.
This is the last "orphan" case.
2017-07-09 13:36:28 +03:00
Paul Sokolovsky b2979023ac tests/cpydiff/core_class_mro: Move under Classes, add workaround. 2017-07-09 13:32:17 +03:00
Damien George f69ab79ec8 py/objgenerator: Allow to hash generators and generator instances.
Adds nothing to the code size, since it uses existing empty slots in the
type structures.
2017-07-07 11:47:38 +10:00
Paul Sokolovsky ed52955c6b tests/cpydiff/modules_deque: Elaborate workaround. 2017-07-05 23:03:37 +03:00
Krzysztof Blazewicz 7feb7301b2 tests/basics: Add tests for arithmetic operators precedence. 2017-07-05 15:51:03 +10:00
Damien George 6b8b56f859 py/modmath: Check for zero division in log with 2 args. 2017-07-04 02:15:11 +10:00
Damien George b86c65d31c extmod/modubinascii: Add check for empty buffer passed to hexlify.
Previous to this patch hexlify(b'', b':') would lead to a bad crash due to
the computed length of the result being -1=0xffffffff.
2017-07-03 14:52:00 +10:00
Paul Sokolovsky 58b7b01cb5 extmod/modure: If input string is bytes, return bytes results too.
This applies to match.group() and split().

For ARM Thumb2, this increased code size by 12 bytes.
2017-07-01 01:25:45 +03:00
Damien George 369e7fd178 tests/unix/extra_coverage: Add test for mp_vprintf with bad fmt spec. 2017-06-30 12:25:42 +10:00
Damien George 8f6ef8de48 tests/basics/namedtuple1: Add test for creating with pos and kw args. 2017-06-29 17:50:09 +10:00
Damien George 409fc8f9c1 tests/import: Update comment now that uPy raises correct exception. 2017-06-28 12:21:29 +10:00
Damien George 3a9445c6b3 tests/import: Add a test for the builtin __import__ function. 2017-06-28 12:21:29 +10:00
Damien George 4a6c0fda78 tests: Auto detect floating point capabilites of the target.
The floating-point precision of the target is detected (0, 30, 32 or 64)
and only those tests which can run on the target will be run.
2017-06-26 13:47:00 +10:00
Paul Sokolovsky bc7659eb59 tests/connect_nonblock: Refactor towards real net_hosted test.
In the future, a special runner for such tests will import each test and
call test() function with an address of test server to use.
2017-06-23 21:27:05 +03:00
Paul Sokolovsky 3f9d59c87a tests/net_inet: Move tests which don't require full Internet to net_hosted.
The idea is that these tests can be run with just a test server running
on a test host, with device under test connecting to it, instead of
requiring Internet connection for testing.

Such setup is however WIP, and some tests in net_hosted/ are so far
written to connect to Internet, as there're not test server written
yet. This is expected to evolve over time.
2017-06-23 21:12:32 +03:00
Damien George 44922934f5 tests/basics: Add tests for for-else statement. 2017-06-22 14:02:14 +10:00
Damien George 458cbacb8f tests/net_inet: Add tests for accept and connect in nonblocking mode.
Some of these tests don't require an Internet connection, but here is a
good place to put them for now.
2017-06-21 12:25:10 +10:00
Paul Sokolovsky 4caa27ae0e tests/net_inet/test_tls_sites.py: Integration test for SSL connections.
This attempts to bootstrap network tests for MicroPython. This commits
sets test/net_inet/ as place for tests which require access to wide
Internet. They aren't intended to be run as part of the main testsuite,
instead to be run manually on demand.

test_tls_sites.py in particular check that it's possible to establish
SSL/TLS connection to select sites on the Internet: few references ones,
plus those for which problems were reported, and resolved.
2017-06-21 01:58:36 +03:00
Damien George e269cabe3e py/objint: In to_bytes(), allow length arg to be any int and check sign. 2017-06-15 14:21:02 +10:00
Damien George 8c5632a869 py/objint: Support "big" byte-order in int.to_bytes(). 2017-06-15 13:56:21 +10:00
Damien George 1e70fda69f py/compile: Raise SyntaxError if positional args are given after */**.
In CPython 3.4 this raises a SyntaxError.  In CPython 3.5+ having a
positional after * is allowed but uPy has the wrong semantics and passes
the arguments in the incorrect order.  To prevent incorrect use of a
function going unnoticed it is important to raise the SyntaxError in uPy,
until the behaviour is fixed to follow CPython 3.5+.
2017-06-14 18:18:01 +10:00